Watch: Saturday's London Report

Is this really the end of the road for Michael Phelps? (1:59)

Wayne Drehs and Michael Wilbon discuss Michael Phelps' future. (1:59)

ESPN's T.J. Quinn and Julie Foudy break down Saturday at the Olympics -- Michael Phelps' finale, how Americans sprinters fared in the women's 100 meters and Serena's big win at Wimbledon: